[support] Session problems

[Daniel Carrera]

Hello,

A lot of users are complaining that inexplicably they end up getting 
logged into another user's account. These are users at a school. At 
first I assumed that they there sharing computers and the previous user 
had not logged out properly. But at least some users have assured me 
that this is not the problem.

Can anyone think of a reason why some users may be logged in as a 
different user? My users are very angry and I don't know what to do.

Drupal 4.7

Thank you for your help.

Daniel.